Quantum physics vs. quantum mechanics

Mattara
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I've been thinking about the difference between quantum physics and quantum mechanics. What are the difference?

Is quantum physics just a subfield name, and within that there are quantum mechanics and quantum field theory etc. or are all of these three independent subfields of physics?
 
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Mattara said:
I've been thinking about the difference between quantum physics and quantum mechanics. What are the difference?

Is quantum physics just a subfield name, and within that there are quantum mechanics and quantum field theory etc. or are all of these three independent subfields of physics?

Is there a reason why you put THIS much effort into what goes in a "name" such as this?

For me, this type of categorization has no significance and is quite interchangable. It is when a name effects the workings of physics and how it is practiced, then it matters (example: a "fermion" is not interchangable with a "boson" where the characteristics matters).

Zz.
 
I apologize for the inconvenience.
 
in the common sense, if one's book use quantum physics
this book is written for beginners.
while quantum mechanics "terminology" is written for graduate oriented students and researchers.
 
Not an expert in QM. AFAIK, Schrödinger's equation is quite different from the classical wave equation. The former is an equation for the dynamics of the state of a (quantum?) system, the latter is an equation for the dynamics of a (classical) degree of freedom. As a matter of fact, Schrödinger's equation is first order in time derivatives, while the classical wave equation is second order. But, AFAIK, Schrödinger's equation is a wave equation; only its interpretation makes it non-classical...
Insights auto threads is broken atm, so I'm manually creating these for new Insight articles. Towards the end of the first lecture for the Qiskit Global Summer School 2025, Foundations of Quantum Mechanics, Olivia Lanes (Global Lead, Content and Education IBM) stated... Source: https://www.physicsforums.com/insights/quantum-entanglement-is-a-kinematic-fact-not-a-dynamical-effect/ by @RUTA
Is it possible, and fruitful, to use certain conceptual and technical tools from effective field theory (coarse-graining/integrating-out, power-counting, matching, RG) to think about the relationship between the fundamental (quantum) and the emergent (classical), both to account for the quasi-autonomy of the classical level and to quantify residual quantum corrections? By “emergent,” I mean the following: after integrating out fast/irrelevant quantum degrees of freedom (high-energy modes...
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